GWP Inc. is a full-service advertising agency catering to clients in Elizabeth. Its advertising solutions include branding, strategic planning, promotion, media buying, and digital and social media marketing. It offers full post-production facilities to help clients deliver their message to the market. Its team handles various advertising productions, like print and radio advertising, video production, and website development. The Montclair-based company was established in 1991, and it was a silver winner for campaign branding at the 2018 Telly Awards.